/// <summary>
/// Creates a configuration for key confirmation using an CMAC/OMAC1 construction.
/// </summary>
/// <param name="cipherEnum">Block cipher to use as basis of CMAC construction.</param>
/// <returns>A key confirmation configuration as a <see cref="AuthenticationConfiguration"/>.</returns>
public static AuthenticationConfiguration GenerateConfiguration(BlockCipher cipherEnum)
{
int outputSize;
var config = AuthenticationConfigurationFactory.CreateAuthenticationConfigurationCmac(cipherEnum, out outputSize);
return(config);
}
public static List <PayloadItem> GetItemsBlockExample(List <FileInfo> files)
{
var items = new List <PayloadItem> ();
foreach (var fileInfo in files)
{
var t = fileInfo;
int authOutputSize;
var payloadItem = new PayloadItem {
Path = t.Name,
ExternalLength = t.Length,
Type = PayloadItemType.File,
SymmetricCipher = CipherConfigurationFactory.CreateBlockCipherConfiguration(BlockCipher.Serpent,
BlockCipherMode.Ctr, BlockCipherPadding.None),
Authentication = AuthenticationConfigurationFactory.CreateAuthenticationConfiguration(MacFunction.Blake2B256, out authOutputSize)
};
payloadItem.SymmetricCipherKey = new byte[payloadItem.SymmetricCipher.KeySizeBits / 8];
StratCom.EntropySupplier.NextBytes(payloadItem.SymmetricCipherKey);
payloadItem.AuthenticationKey = new byte[payloadItem.Authentication.KeySizeBits.Value / 8];
StratCom.EntropySupplier.NextBytes(payloadItem.AuthenticationKey);
payloadItem.SetStreamBinding(fileInfo.OpenRead);
items.Add(payloadItem);
}
return(items);
}
/// <summary>
/// Creates a configuration for key confirmation using an HMAC construction.
/// </summary>
/// <param name="hashFunctionEnum">Hash function to use as basis of HMAC construction.</param>
/// <returns>A key confirmation configuration as a <see cref="AuthenticationConfiguration"/>.</returns>
public static AuthenticationConfiguration GenerateConfiguration(HashFunction hashFunctionEnum)
{
int outputSize;
var config = AuthenticationConfigurationFactory.CreateAuthenticationConfigurationHmac(hashFunctionEnum, out outputSize);
return(config);
}
